2LikesLosi XXX-S
03-21-2002, 01:38 PM
#2326
Originally posted by R_Andersen
Droop and Preload questions
I've been working on gettting the ride height and droop set properly on my XXX-S and I had a few questions. I have the droop set at 3 in the front and 5 in the rear. I'm also running 4mm ride height front and rear. I have the short threaded shocks in front and the standard length threaded shocks in the rear and I'm running uncut proline foam tires. I'm also running the 1.0" springs front and rear.
The problem is that I had to run very little spring preload to get the proper ride height. Now when I pick the car up, the shocks do not extend fully to the droop screws. When I extend the suspension fully to the max droop, the spring is not under any preload. There is actually about a 1/8" gap from the top of the spring to the adjuster nut on the shocks. It seems that since the springs can not extend far enough to ever make contact with the droop scres, that the droop setting is meaningless.
If anyone could tell me if this is normal or what I need to do to correct it, it would be appreciated. I am assuming you would still want some amount of spring preload at full droop.
Thanks,
Rob
Droop and Preload questions
I've been working on gettting the ride height and droop set properly on my XXX-S and I had a few questions. I have the droop set at 3 in the front and 5 in the rear. I'm also running 4mm ride height front and rear. I have the short threaded shocks in front and the standard length threaded shocks in the rear and I'm running uncut proline foam tires. I'm also running the 1.0" springs front and rear.
The problem is that I had to run very little spring preload to get the proper ride height. Now when I pick the car up, the shocks do not extend fully to the droop screws. When I extend the suspension fully to the max droop, the spring is not under any preload. There is actually about a 1/8" gap from the top of the spring to the adjuster nut on the shocks. It seems that since the springs can not extend far enough to ever make contact with the droop scres, that the droop setting is meaningless.
If anyone could tell me if this is normal or what I need to do to correct it, it would be appreciated. I am assuming you would still want some amount of spring preload at full droop.
Thanks,
Rob
It is normal for the TC springs have some play when the car is off the ground and the shocks are at full droop. You don't want any spring preload when the shocks are at droop.
I would do the droop with the shocks and swaybars (if you have them) detached. After, put everything back on including wheels and use the collars to adjust ride height. After that check for tweak and adjust that out also using the shock collars.
Last edited by Sydewynder; 03-21-2002 at 01:45 PM.
03-21-2002, 01:41 PM
#2327
Originally posted by R_Andersen
One more question also. Do you need different front carriers to get 4 degrees of caster or are the stock carriers the 4 degree ones? If they aren't, what's the part number for the 4 degree carriers?
Thanks again,
Rob
One more question also. Do you need different front carriers to get 4 degrees of caster or are the stock carriers the 4 degree ones? If they aren't, what's the part number for the 4 degree carriers?
Thanks again,
Rob
03-21-2002, 01:49 PM
#2328
The stock hub cariers are definitely not the 4 degree ones. The 4 degree carriers are clearly marked as such. I haven't checked to see what amount of caster the car has stock, though, so if the goal is to get to 4 degrees of caster, you should check this out before buying anything. Sorry, I don't have the part number handy on the 4 degree carriers! 
03-21-2002, 02:23 PM
#2329
Tech Adept
Stock carriers are 0 degrees.Kickup + kingpin angle=total caster.
Kickup is controlled by the pivot blocks that mount inner pins of front suspension arms to chassis. Two mounts included
0/4degree and a 2 degree.
I found these at Horizon but they are out of stock.
A9747 Graphite 2 degree carriers
A9753 " " 4 degree.
You can get 4 degrees total with stock kit or up to 8 with optional carriers.
Kickup is controlled by the pivot blocks that mount inner pins of front suspension arms to chassis. Two mounts included
0/4degree and a 2 degree.
I found these at Horizon but they are out of stock.
A9747 Graphite 2 degree carriers
A9753 " " 4 degree.
You can get 4 degrees total with stock kit or up to 8 with optional carriers.
03-21-2002, 02:44 PM
#2330
Asphalt Racers!
Anyone who races on asphalt might be interested in this article in the new R/C Car mag. Brian Kinwald has his setup for low bite asphalt as well as high bite. Def. worth checking out!
03-21-2002, 04:28 PM
#2331
Blk Lbl Society
please could you tell me that low bite asphalt setup? I live in europe I can not get the magazin.
03-21-2002, 05:28 PM
#2332
Tech Adept
Lowbite:
Front:
Shock Tower #3
Camber link #2
Shocks
Spring Silver
Piston 56
Oil 80wt.
Roll Center Low/o kick OF block upper holes
Caster Blocks 4degree
Ride Ht. 5mm.
Camber 0-1 deg of negative.
Droop 10mm(measured with wheels on)
Swaybar no
Rear
Tower #3
Shock location out on arm
Shocks
Spring Pink
Piston 55
oil 80wt.
Roll center Low*
*Use a low roll center setup one,or use OR block in lower holes.
Hubs 0degrees
Camber0-1 degree of negative camber
Droop 10mm wheels on
Swaybar no
Miscellaneous Arm spacing: Center front and rear.
Battery forward.
Graphite chassis. Routed out(dremel 1/8" routing bit). to lighten it even more.
Ti turnbuckles
Gold plated body pins!makes it go faster just like extra decals
Front:
Shock Tower #3
Camber link #2
Shocks
Spring Silver
Piston 56
Oil 80wt.
Roll Center Low/o kick OF block upper holes
Caster Blocks 4degree
Ride Ht. 5mm.
Camber 0-1 deg of negative.
Droop 10mm(measured with wheels on)
Swaybar no
Rear
Tower #3
Shock location out on arm
Shocks
Spring Pink
Piston 55
oil 80wt.
Roll center Low*
*Use a low roll center setup one,or use OR block in lower holes.
Hubs 0degrees
Camber0-1 degree of negative camber
Droop 10mm wheels on
Swaybar no
Miscellaneous Arm spacing: Center front and rear.
Battery forward.
Graphite chassis. Routed out(dremel 1/8" routing bit). to lighten it even more.
Ti turnbuckles
Gold plated body pins!makes it go faster just like extra decals
03-21-2002, 05:57 PM
#2333
I just got the sway bars for my xxxs, and noticed they are the same. They both are rears. Is there any difference between the front and the rears?
03-21-2002, 06:20 PM
#2334
Sorry does anyone know the part number for the sway bar.
03-21-2002, 06:23 PM
#2335
A4250 front, A4251 rear
03-21-2002, 10:54 PM
#2336
R_Andersen
Ok I just checked the front carriers. As the others say, they are not 4 degrees. Mine is 0 degrees.
Ok I just checked the front carriers. As the others say, they are not 4 degrees. Mine is 0 degrees.
03-21-2002, 11:08 PM
#2337
what do the front four degree caster/spindles do for the car?
03-22-2002, 11:17 AM
#2338
Tech Initiate
There is a difference in the front and rear sway bars. The rear are a bit wider. Both front and rear come in four diameters that are the same. but the geometry is different.
The 4 degree blocks in the front will give the car turn in off power. This tends to cause a push that is easily cured by running 0 degree of toe in the front or mabye 1/2 degree of toe in. The blocks are good with or with out the one way.
B.
The 4 degree blocks in the front will give the car turn in off power. This tends to cause a push that is easily cured by running 0 degree of toe in the front or mabye 1/2 degree of toe in. The blocks are good with or with out the one way.
B.
03-22-2002, 11:39 AM
#2339
Would it hurt to take and bend them in a little to make them fit. My lhs does not have any more. Thanks BrianC for the help.
03-22-2002, 08:27 PM
#2340
thanks
thanks for the spring info guys. 